Colton's Maine / published by G.W. and C.B. Colton & Co.
MLA
G. W., et al. Colton's Maine / Published by G.W. and C.B. Colton & Co. G.W. and C.B. Colton Co., 0AD. https://collections.library.yale.edu/catalog/15606993.
APA, 6th edition
G. W., Colton, C. B., & C. (0 C.E.). Colton's Maine / published by G.W. and C.B. Colton & Co. [Maps]. G.W. and C.B. Colton Co., https://collections.library.yale.edu/catalog/15606993.